https://padlet.com/mataresemartina18/dd1tomaeqmhr PROJECT BY AVERSA FEDERICA, MATARESE MARTINA, SPETRINI SIMONE AND ZICARELLI ISIS en-us 2018-01-16 10:50:03 UTC 2025-07-04 00:34:19 UTC hello@padlet.com mataresemartina18 https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/222997515  The natural phenomenon of static electricity has been known since antiquity. It was recorded by Thales of Miletus in the sixth century B.C.E. Scientific research into the subject began when machines were built to create static electricity artificially, such as the friction generator developed by Otto von Guericke in the seventeenth century. The connection between static electricity and storm clouds was famously demonstrated by Benjamin Franklin in 1750 ]]> 2018-01-20 10:27:48 UTC https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/222997515 mataresemartina18 https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/222997619  In the late eighteenth century, scientists developed sensitive instruments for detecting "electrification," otherwise known as electrostatic charge imbalance. The phenomenon of electrification by contact, also known as contact electrification or contact tension, was quickly discovered. When two objects were touched together, sometimes the objects became spontaneously charged. One object developed a net negative charge, while the other developed an equal and opposite positive charge. ]]> 2018-01-20 10:29:27 UTC https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/222997619 mataresemartina18 https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/222997709 2018-01-20 10:31:15 UTC https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/222997709 mataresemartina18 https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/222997802  Based on the observation of contact electrification, scientists attempted to explain how electricity is generated in an electric battery, or the Voltaic pile, as it was then called.^[3] This theoretical view was eventually replaced by the current theory of electrochemistry, namely, that electricity is generated by the action of chemistry and the exchange of electrons between atoms making up the battery. An important fact leading to rejection of the theory of contact tension was the observation that corrosion (chemical degradation of the battery) seemed unavoidable with its use, and that the more electricity was drawn from the battery, the faster the corrosion proceeded. ]]> 2018-01-20 10:32:46 UTC https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/222997802 mataresemartina18 https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/222997855  The Volta effect does indeed correspond to a weak electric potential developed by the contact of different metals. This effect was first discovered by Alessandro Volta, and can be measured using a capacitance electroscope comprised of different metals. However, the actual effect is not sufficiently strong to account for the action of electric batteries. ]]> 2018-01-20 10:33:24 UTC https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/222997855 mataresemartina18 https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/222998441 2018-01-20 10:41:07 UTC https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/222998441 mataresemartina18 https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/222998564 2018-01-20 10:42:46 UTC https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/222998564 mataresemartina18 https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/225093174 2018-01-26 15:29:51 UTC https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/225093174 mataresemartina18 https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/225099968 NEW WORLD ENCYCLOPEDIA]]> 2018-01-26 15:41:31 UTC https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/225099968 mataresemartina18 https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/225105744 2018-01-26 15:49:39 UTC https://padlet.com/mataresemartina18/dd1tomaeqmhr/wish/225105744